Why are rejection type fuses required to be used in the factory or field installed fuse clips of an Industrial Control Power Transformer?

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Issue:
Fuses for Industrial Control Transformers

Product Line:
LV Transformers

Environment:
Applies to Industrial Control Transformers by SquareD/Schneider Electric

Cause:
Overcurrent protection (OCP) for CPTs

Resolution:

Rejection fuse clips have an AIR rating of 200,000 amps allowing end users to comply with UL 508 criteria for branch circuit status according to the NEC.